Roll bending machine



FIG. 1 is a top, side and end perspective view of a roll bending machine showing my new design;

FIG. 2 is a top, side and end perspective view thereof showing the end opposite that shown in FIG. 1;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a roll bending machine, as shown. 